It is not rare to see that structural
materials used in the backbone of houses are
the main cause of setbacks and
dissatisfaction of the dwelling discovered
by clients once settled in their new homes.
In addition, resistance against earthquake
and fire hazards and also the life span of
the home can be greatly affected by the
structural material used, ultimately
affecting the true value of the property and
the home.

The importance for high quality structural
material is undeniable; however, replacing
already installed components, especially
structural components, is nearly impossible.
Proper planning and inspection of the
building products before the construction is
the key point in creating a high value home.

We, at Key-Tec Co. LTD., value our
customer’s desires for a “Home with Quality”
and would like to offer our assistance by
introducing our innovative structural LVL
KeyLam.

What is Structural Keylam?

Structural LVL KeyLam is a product
manufactured by gluing multiple layers of
dried veneers (~4mm thick) with grains
parallel to each other. The outstanding
strength and the dimensional stability
achieved from such process have been highly
praised and evaluated.

The Properties?

Outstanding Strength

Since “Keylam” is made by laminating
veneers with their grains parallel, it
promises superior strength when used as
axial building components (columns,
beams and etc.). When applied as
horizontal structural element (beams),
pride is taken in its high allowable
stress against vertical load (live load,
dead load, snow load, etc.).

Kiln-dried Material

As the veneers are dried prior to
assembly of the LVL, the moisture
content of the product is guaranteed to
be below 14%. Such characteristics allow
remarkable reduction of problems, namely
checks, warps, and looseness of joints,
etc. which hold the possibility of being
the direct cause of creaky floors and
distortion in the wall.

Low Dispersion

Since “Keylam” is made by laminating
multiple sheets of veneer, it has a very
low dispersion property. Though a defect
may appear in a layer of veneer, the
surrounding veneer will absorb any
possible weakness and the effect will be
negligible. Lower dispersion means that
the material has higher lower limits
when the mean value is the same with
materials with higher dispersion, this
enables higher allowable stress.

Long-size and Large Area Material Gaining
Capability

As the veneers are vertically connected/
glued, it is possible to produce
long-size straight lumber, even from
thinned small diameter trees. Also,
various thicknesses can be achieved by
adjusting the number of veneers, meeting
any possible purpose and use.

Local Round Logs can be Utilized

As local round log can be utilized for
the LVL production, contributions and
promotions can be made to the local
forestry industries.

青少年交流施設（仮称） 神奈川県秦野市：神奈川県産ひのきを使用

Long Span Beams

High strength Keylam are capable of
achieving longer span, allowing for less
pillars, leading to the capability of
creating large open space. When the
building is in need of refurnishing,
there are very few restrictions to
achieving the desired layout due to
large open spaces with little to no
column. Such ideal conditions are only
achieved with the use of the Key-Lam
Joists.